Fire cable price
At present, the widely used fire-resistant cables mainly include UL series fire-resistant cables and fire-resistant wdz. Among the imported products, mainly from the United States and Europe. Because the standards of fire-proof cables in the United States and Europe are incompatible with each other, the fire-proof ideas are very different. Therefore, both Party A and the design institute are in a passive state when choosing products, and each has its own reasons. In the end, it is often chosen according to the actual situation of funds.
Victoria's Secret Power Supply Oriental Yulin Fire Cable? :￥55
Hot-selling cable, national high-quality YJV cable? :￥500
Shen Xing cable factory direct wholesale silicone rubber: 20 yuan.
Xinghua cable wire and cable? : 180 (price source network, for reference only)
Fire cable type
1)? Boost stage -CMP stage (gas supply combustion test/Steiner sodium conduit test boost? Flame? Test/Steiner? Tunnel test)
This is? The cable with the highest requirements in UL fire protection standard (flame retardant? Cable), the applicable safety standard is UL9 10. In the experiment, several samples were laid on the horizontal air duct of the device and burned with 87.9KW gas bunsen burner (300,000 btu/hr) for 20 minutes. The acceptable criterion is that the flame should not extend more than 5 feet in front of the gas bunsen burner flame. The maximum peak value of optical density is 0.5, and the maximum average density value is 0. 15.
2)? Trunk level -CMR level (vertical combustion test riser? Flame? Test)
This is? UL standard commercial grade cable (riser? Cable), the applicable safety standard is UL 1666. In the experiment, several samples were laid on the simulated shaft, and bunsen burner (527,500 btu/hr) with the specified gas of 154.5KW was used for 30 minutes. The qualification criterion is that the flame cannot spread to the upper part of the room with a height of 12 feet. Trunk cables have no smoke concentration specifications and are generally used for vertical and horizontal wiring of floors.
3)? Commercial grade -CM grade (vertical combustion test? Tray? Flame? Test)
This is? Commercial grade cable in UL standard (universal? Purpose? Cable), the applicable safety standard is UL 158 1. In the experiment, many samples were placed on a bracket with a vertical height of 8 feet and burned with a designated 20KW ribbon torch (70,000 btu/hr) for 20 minutes. The qualification standard is that the flame cannot spread to the upper end of the cable and extinguish itself. UL 158 1 is similar to 3C IEC60332, but the number of cables laid is different. There is no smoke concentration specification for commercial cables, which are generally only used for horizontal wiring on the same floor, and should not be used for vertical wiring on the floor.
4)? General level -CMG level (vertical combustion test? Tray? Flame? Test)
This is? Universal cable in UL standard (universal? Purpose? Cable), the applicable safety standard is UL 158 1. The test conditions of commercial grade and ordinary grade are similar, both of which are approved by Canada and the United States. There is no smoke concentration specification for general cables, which are generally only used for horizontal wiring on the same floor and should not be used for vertical wiring on floors.
5)? Household grade-CMX grade (vertical combustion test vertical? Wires? Flame? Test)
This is? UL standard household cable (restricted? Cable), the applicable safety standards are UL 158 1, VW- 1. In the experiment, it is stipulated that the sample should be kept vertical and burned with a blowtorch (30 thousand? Tu/hr)15s, then stop15s, and repeat for 5 times. The qualified criteria are that the residual flame does not exceed 60 seconds, the sample burns less than 25%, and the surgical cotton at the bottom pad is not ignited by falling objects. Ul1581-VW-1is similar to IEC60332- 1, but the combustion time is different. This grade also has no smoke or toxicity specifications, and is only used for home or small office systems with a single cable. This kind of cable can't be laid in bundles, and it must be sheathed.
The above is Bian Xiao's detailed knowledge about fire cables. I hope that through our sharing, you can better understand the fire cable. Fireproof cables are becoming more and more important in our life. Fireproof cable can not only effectively prevent fire, but also prevent corrosion. There are mainly two kinds of fire-proof cables, namely UL series fire-retardant cables and fire-retardant wdz. In addition, the use of fire cables mainly includes general-purpose level -CMG level and household level -CMX level.